Operating the VN2000 Transmitter
Page 17
June 2017
VRX-UM-02233-EN-02
Vortex Threshold
The
Vortex Threshold
feature:
• Is designed to the get the most out of low flow conditions .
• Is meant to be used in high density fluids like liquids where signals are large .
• Is set at the factory and should not be changed unless consulting the factory first .
• Has settings range from 0…7, with 0 being the most sensitive and 7 being the least sensitive .
The typical
Vortex Threshold
setting for liquid, gases and steam is 3 . If the setting is not at 3, consult the factory .
When to use the
Vortex Threshold
settings:
• The flow meter has been installed and the operating condition is very close or below the meter’s minimum .
• There is zero flow rate at normal operating conditions, or the flow rate is bouncing to zero, or the flow rate is much lower
than expected . In this case, increase the sensitivity of the dual sensors by lowering the
Vortex Threshold
settings .
◊ To increase the sensitivity of the dual sensors, lower the threshold to 2, 1, or 0 .
◊ Zero (0) is the most sensitive settings .
◊ Do not raise the threshold setting above 3, unless the factory recommends it .
Change Password
The
Password Security
feature lets you create a password to stop any unauthorized user from tampering with settings or
parameters within the VN2000 Transmitter electronics .
Every VN2000 Transmitter does not come with a password . The security password can be created in this program mode . Any
user will be required to enter this password before entering into the
Program Mode
. If the correct password is not entered, NO
flow meter settings or parameters can be changed .
How to set your password:
1 . Press
Menu
until the
Enter Password Setting
option appears . The default Password is 000000 .
2 . Press
Left Trrow
to position the cursor under each number .
3 . Press
Up Trrow
to select each digit .
4 . Confirm the password by repeating steps 2 and 3 .
5 . Let the program mode sit for 10 seconds until
Flow Rate
and
Flow Total
displays .
If any user wants to change flow meter settings, they have to first enter the correct password .
OTEE:
N
If an incorrect password is entered, the VN2000 Transmitter immediately reverts back to the
Flow Rate
and
Flow Total
display .